GB/T50235—1997《工业金属管道施工及验收规范》标准规定,管壁厚在3.0〜

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问题:

GB/T50235—1997《工业金属管道施工及验收规范》标准规定,管壁厚在3.0〜9.0mm时,对口间隙为1.0〜()。

A.1.5mm

B.2.0mm

C.2.5mm

D.3mm

考点:油气管线安装工考试初级油气管线安装工考试初级油气管线安装工考试题库
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上午9点时,时针与分针成直角,那么下一次时针与分针成直角是什么时候?

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完成生活史不需要中间宿主的寄生虫是()

A.猪带绦虫

B.牛带绦虫

C.细粒棘球绦虫

D.缩小膜壳绦虫

E.微小膜壳绦虫

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患者男性,48岁。无溃疡病史。中午与同事聚餐后突然出现上腹中部剧烈疼痛,向腰背部呈带状放射,自服止痛剂无效。频繁呕吐,继而呕出胆汁,伴高热。急诊入院体检:T39.5℃,急性面容,腹肌紧张,有轻度压痛。初步诊断为"急性胰腺炎"。

下列紧急处理措施中,不妥的是()

A.禁食、胃肠减压

B.应用阿托品缓解胃肠痉挛

C.应用生长抑素减少胰液分泌

D.静脉补液,维持水、电解质平衡

E.物理降温,禁用抗生素以防掩盖病情

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Surprises often come in boxes. Birthday presents wrapped in colorful paper, brown paper packages mailed from a friend. No matter what kind of box it is, people like to open it up and see what's inside. In America, and in many other countries, one special kind of box contains the future. It's called a ballot box. What people put into the box on election day can change the course of history.

Elections are the lifeblood of a democracy. The word democracy literally means "the people rule," an important concept in American history. In the mid-1700s, England began passing laws that made the American colonies angry. The colonists had to pay more and more taxes and enjoyed less and less freedom. They felt the government of England didn't represent their interests. On July 4, 1776, the colonies declared their independence from England. They wanted to establish a democracy where people could have a voice in government.

An effective democracy holds regular elections. In America, elections are held every two years for members of Congress. In these elections, all seats in the House of Representatives and one-third of the Senate seats are up for grabs. In addition, every four years, voters go to the polls to elect the nation's president and vice-president. Voters also regularly cast their ballots for state and city government leaders and local school board members. Sometimes they also have to vote on a proposed law.

In the American electoral system, people don't really vote for presidential candidates. Instead, voters cast their ballots for "electors" who support each candidate. Each state has as many electors as the total number of its representatives in Congress. This equals two senators per state plus the number of its representatives in the House (which is based on the state's population). The candidate who has the most votes in a state wins all of the state's electors. To win the presidential election, a candidate must gain at least 270 of the 538 total electoral votes.

Over the years, the U.S. has made a number of election reforms. Some early reforms outlawed cheating, giving bribes and threatening voters. They also limited the amount of money candidates could receive from donors and spend on their campaigns. In 1870, black people gained the right to vote, and in 1920, that right was extended to women. In recent decades, laws against unfair rules for voting have been passed. No longer do people have to pay a special tax or pass a test in order to vote. In 1971, the voting age was lowered to 18. Other reforms made voting easier for the blind, the disabled and people who couldn't read. In some areas, ballots had to be printed in languages besides English.

In November, Americans will again elect those who will represent them in government. Although some citizens aren't even registered to vote--and some registered voters don't bother to go to the polls--most Americans exercise their right to vote. They realize that their future is wrapped up in a special package--the ballot box. It's a package that must definitely be "handled with care."

小题1:According to the context, what does a “ballot box” mean in Chinese?

A. * * 箱

B.投票箱

C.礼品箱

D.保险箱小题2:Democracy means that ____.

A.People couldn’t have a voice in a government.

B.In America, elections are held every four years for members of Congress.

C.Democracy is the lifeblood of elections.

D.Basically “ the people rule”, and it’s very important in American history.小题3:How will the votes distributed if Romney got 20 votes while Obama received 17 votes in California in the election?

A.Romney will win 20 votes in California.

B.Obama will win 20 votes in California.

C.Romney will win 37 votes in California.

D.Obama will win 37 votes in California.小题4: Which one is RIGHT about election reforms?

A.People have to pay a special tax to vote.

B.There are bribes and threatening in elections now.

C.People above eighteen years old can vote now.

D.The disabled or the blind have tough access to voting.小题5: What’s the main idea of this passage?

A.Birthday boxes in the U.S.

B.Election systems in the U.S.

C.Election reforms in the U.S.

D.Democracy in the U.S.

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金属材料退火后有什么变化?

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